Henry, JB. "Clinical Diagnosis and Management by Laboratory Methods, 19th ed. Saunders Company, 1996 Thomas M. Devlin. Textbook of Biochemistry with Clinical Correlation, 4th edition, Wiley-Liss, 1997. Burtis CA, Ashwood ER, Bruns DE. "Tietz Textbok of Clinical Chemistry and Molecular Diagnosis", 4th ed. W.B. Saunders Company, 2006 Bishop ML, Fody EP, Schoeff LE "Clinical Chemistry – Techniques, Principles, correlations", 6th ed. Lippincott, Williams and Wilkins 2010: